Pinpoint Test F : Noise on the screen; screen color is abnormal.
- F1: DISPLAY POWER AND GROUND CHECKS
Refer to electrical circuit diagrams and check battery power and power ON relay voltage, and ground resistance.
Is the battery power and power ON relay voltage between 10.5 and 16 volts, and continuity to ground?
YES: Proceed to the next step.
NO: Check and rectify the vehicle wiring harness and connectors.
- F2: CONTRAST CHECK
Check to see if the screen color is normal when the screen setting (contrast) is re-ret to the default values.
Is the screen color normal with the default values?
YES: Operation is normal.
NO: Go to step 3.
- F3: CABIN INTERNAL TEMPERATURE CHECK
Check the cabin internal temperature.
Is the cabin internal temperature -20°C or lower?
YES: Raise the cabin internal temperature and re-test.
NO: Go to step 4.
- F4: ADDITIONAL SCREEN CHECKS
Check all other screens.
Are all other screens beside the navigation display screen normal?
YES: Check and install a new Touch Screen Display (TSD) as required. Refer to the new module/component installation note at top of DTC Index.
NO: Go to step 5.
- F5: COLOR BAR CHECK
Carry out the display diagnostics color bar check test.
Are the results of the display diagnostics color bar check normal?
YES: Operation is normal.
NO: Check and install a new Touch Screen Display (TSD) as required. Refer to the new module/component installation note at top of DTC Index.